function
| Library: EUC (OMFFEUC) Import : omffeuc.xmd | 
export external string source function reader from value string source input-data
 Use euc.reader to read its value string source input-data argument, and return that
      data converted from a EUC encoding to a UTF-8 encoding. That is, the provided source is in EUC, but the program
      sees UTF-8.
      
 The following program uses euc.reader to convert #main-input from UTF-8 to EUC, and then send
      the result to find rules for further processing.
        
import "omffeuc.xmd" prefixed by euc. process using group "process input" submit euc.reader from #main-input group "process input" ; ...
 To use this function, you must import OMFFEUC into your program using an import
      declaration such as:
        
import "omffeuc.xmd" prefixed by euc.